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Discovery
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| Discovered by | Johann Palisa |
| Discovery date | March 8, 1888 |
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Designations
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| Named after | Atropos |
| Minor planet category |
Main belt |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 415.643 Gm (2.778 AU) |
| Perihelion | 301.085 Gm (2.013 AU) |
| Semi-major axis | 358.364 Gm (2.396 AU) |
| Eccentricity | 0.16 |
| Orbital period | 1354.216 d (3.71 a) |
| Average orbital speed | 19.24 km/s |
| Mean anomaly | 91.72° |
| Inclination | 20.44° |
| Longitude of ascending node | 159.145° |
| Argument of perihelion | 120.6° |
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Physical characteristics
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| Dimensions | 29.0 km |
| Mass | unknown |
| Mean density | unknown |
| Equatorial surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Albedo | unknown |
| Temperature | unknown |
| Spectral type | unknown |
| Absolute magnitude (H) | 10.26 |
273 Atropos is a typical Main belt asteroid.
It was discovered by Johann Palisa on March 8, 1888 in Vienna.
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